Kconfig 54 KB

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  1. config ARM
  2. bool
  3. default y
  4. select HAVE_AOUT
  5. select HAVE_DMA_API_DEBUG
  6. select HAVE_IDE
  7. select HAVE_MEMBLOCK
  8. select RTC_LIB
  9. select SYS_SUPPORTS_APM_EMULATION
  10. select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
  11. select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
  12. select HAVE_ARCH_KGDB
  13. select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
  14. select HAVE_KRETPROBES if (HAVE_KPROBES)
  15. select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
  16. select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
  17. select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
  18. select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
  19. select HAVE_GENERIC_DMA_COHERENT
  20. select HAVE_KERNEL_GZIP
  21. select HAVE_KERNEL_LZO
  22. select HAVE_KERNEL_LZMA
  23. select HAVE_IRQ_WORK
  24. select HAVE_PERF_EVENTS
  25. select PERF_USE_VMALLOC
  26. select HAVE_REGS_AND_STACK_ACCESS_API
  27. select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
  28. select HAVE_C_RECORDMCOUNT
  29. select HAVE_GENERIC_HARDIRQS
  30. select HAVE_SPARSE_IRQ
  31. help
  32. The ARM series is a line of low-power-consumption RISC chip designs
  33. licensed by ARM Ltd and targeted at embedded applications and
  34. handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
  35. manufactured, but legacy ARM-based PC hardware remains popular in
  36. Europe. There is an ARM Linux project with a web page at
  37. <http://www.arm.linux.org.uk/>.
  38. config HAVE_PWM
  39. bool
  40. config MIGHT_HAVE_PCI
  41. bool
  42. config SYS_SUPPORTS_APM_EMULATION
  43. bool
  44. config HAVE_SCHED_CLOCK
  45. bool
  46. config GENERIC_GPIO
  47. bool
  48. config ARCH_USES_GETTIMEOFFSET
  49. bool
  50. default n
  51. config GENERIC_CLOCKEVENTS
  52. bool
  53. config GENERIC_CLOCKEVENTS_BROADCAST
  54. bool
  55. depends on GENERIC_CLOCKEVENTS
  56. default y if SMP
  57. config KTIME_SCALAR
  58. bool
  59. default y
  60. config HAVE_TCM
  61. bool
  62. select GENERIC_ALLOCATOR
  63. config HAVE_PROC_CPU
  64. bool
  65. config NO_IOPORT
  66. bool
  67. config EISA
  68. bool
  69. ---help---
  70. The Extended Industry Standard Architecture (EISA) bus was
  71. developed as an open alternative to the IBM MicroChannel bus.
  72. The EISA bus provided some of the features of the IBM MicroChannel
  73. bus while maintaining backward compatibility with cards made for
  74. the older ISA bus. The EISA bus saw limited use between 1988 and
  75. 1995 when it was made obsolete by the PCI bus.
  76. Say Y here if you are building a kernel for an EISA-based machine.
  77. Otherwise, say N.
  78. config SBUS
  79. bool
  80. config MCA
  81. bool
  82. help
  83. MicroChannel Architecture is found in some IBM PS/2 machines and
  84. laptops. It is a bus system similar to PCI or ISA. See
  85. <file:Documentation/mca.txt> (and especially the web page given
  86. there) before attempting to build an MCA bus kernel.
  87. config STACKTRACE_SUPPORT
  88. bool
  89. default y
  90. config HAVE_LATENCYTOP_SUPPORT
  91. bool
  92. depends on !SMP
  93. default y
  94. config LOCKDEP_SUPPORT
  95. bool
  96. default y
  97. config TRACE_IRQFLAGS_SUPPORT
  98. bool
  99. default y
  100. config HARDIRQS_SW_RESEND
  101. bool
  102. default y
  103. config GENERIC_IRQ_PROBE
  104. bool
  105. default y
  106. config GENERIC_LOCKBREAK
  107. bool
  108. default y
  109. depends on SMP && PREEMPT
  110. config RWSEM_GENERIC_SPINLOCK
  111. bool
  112. default y
  113. config RWSEM_XCHGADD_ALGORITHM
  114. bool
  115. config ARCH_HAS_ILOG2_U32
  116. bool
  117. config ARCH_HAS_ILOG2_U64
  118. bool
  119. config ARCH_HAS_CPUFREQ
  120. bool
  121. help
  122. Internal node to signify that the ARCH has CPUFREQ support
  123. and that the relevant menu configurations are displayed for
  124. it.
  125. config ARCH_HAS_CPU_IDLE_WAIT
  126. def_bool y
  127. config GENERIC_HWEIGHT
  128. bool
  129. default y
  130. config GENERIC_CALIBRATE_DELAY
  131. bool
  132. default y
  133. config ARCH_MAY_HAVE_PC_FDC
  134. bool
  135. config ZONE_DMA
  136. bool
  137. config NEED_DMA_MAP_STATE
  138. def_bool y
  139. config GENERIC_ISA_DMA
  140. bool
  141. config FIQ
  142. bool
  143. config ARCH_MTD_XIP
  144. bool
  145. config VECTORS_BASE
  146. hex
  147. default 0xffff0000 if MMU || CPU_HIGH_VECTOR
  148. default DRAM_BASE if REMAP_VECTORS_TO_RAM
  149. default 0x00000000
  150. help
  151. The base address of exception vectors.
  152. source "init/Kconfig"
  153. source "kernel/Kconfig.freezer"
  154. menu "System Type"
  155. config MMU
  156. bool "MMU-based Paged Memory Management Support"
  157. default y
  158. help
  159. Select if you want MMU-based virtualised addressing space
  160. support by paged memory management. If unsure, say 'Y'.
  161. #
  162. # The "ARM system type" choice list is ordered alphabetically by option
  163. # text. Please add new entries in the option alphabetic order.
  164. #
  165. choice
  166. prompt "ARM system type"
  167. default ARCH_VERSATILE
  168. config ARCH_AAEC2000
  169. bool "Agilent AAEC-2000 based"
  170. select CPU_ARM920T
  171. select ARM_AMBA
  172. select HAVE_CLK
  173. select ARCH_USES_GETTIMEOFFSET
  174. help
  175. This enables support for systems based on the Agilent AAEC-2000
  176. config ARCH_INTEGRATOR
  177. bool "ARM Ltd. Integrator family"
  178. select ARM_AMBA
  179. select ARCH_HAS_CPUFREQ
  180. select CLKDEV_LOOKUP
  181. select ICST
  182. select GENERIC_CLOCKEVENTS
  183. select PLAT_VERSATILE
  184. help
  185. Support for ARM's Integrator platform.
  186. config ARCH_REALVIEW
  187. bool "ARM Ltd. RealView family"
  188. select ARM_AMBA
  189. select CLKDEV_LOOKUP
  190. select HAVE_SCHED_CLOCK
  191. select ICST
  192. select GENERIC_CLOCKEVENTS
  193. select ARCH_WANT_OPTIONAL_GPIOLIB
  194. select PLAT_VERSATILE
  195. select ARM_TIMER_SP804
  196. select GPIO_PL061 if GPIOLIB
  197. help
  198. This enables support for ARM Ltd RealView boards.
  199. config ARCH_VERSATILE
  200. bool "ARM Ltd. Versatile family"
  201. select ARM_AMBA
  202. select ARM_VIC
  203. select CLKDEV_LOOKUP
  204. select HAVE_SCHED_CLOCK
  205. select ICST
  206. select GENERIC_CLOCKEVENTS
  207. select ARCH_WANT_OPTIONAL_GPIOLIB
  208. select PLAT_VERSATILE
  209. select ARM_TIMER_SP804
  210. help
  211. This enables support for ARM Ltd Versatile board.
  212. config ARCH_VEXPRESS
  213. bool "ARM Ltd. Versatile Express family"
  214. select ARCH_WANT_OPTIONAL_GPIOLIB
  215. select ARM_AMBA
  216. select ARM_TIMER_SP804
  217. select CLKDEV_LOOKUP
  218. select GENERIC_CLOCKEVENTS
  219. select HAVE_CLK
  220. select HAVE_SCHED_CLOCK
  221. select ICST
  222. select PLAT_VERSATILE
  223. help
  224. This enables support for the ARM Ltd Versatile Express boards.
  225. config ARCH_AT91
  226. bool "Atmel AT91"
  227. select ARCH_REQUIRE_GPIOLIB
  228. select HAVE_CLK
  229. help
  230. This enables support for systems based on the Atmel AT91RM9200,
  231. AT91SAM9 and AT91CAP9 processors.
  232. config ARCH_BCMRING
  233. bool "Broadcom BCMRING"
  234. depends on MMU
  235. select CPU_V6
  236. select ARM_AMBA
  237. select CLKDEV_LOOKUP
  238. select GENERIC_CLOCKEVENTS
  239. select ARCH_WANT_OPTIONAL_GPIOLIB
  240. help
  241. Support for Broadcom's BCMRing platform.
  242. config ARCH_CLPS711X
  243. bool "Cirrus Logic CLPS711x/EP721x-based"
  244. select CPU_ARM720T
  245. select ARCH_USES_GETTIMEOFFSET
  246. help
  247. Support for Cirrus Logic 711x/721x based boards.
  248. config ARCH_CNS3XXX
  249. bool "Cavium Networks CNS3XXX family"
  250. select CPU_V6
  251. select GENERIC_CLOCKEVENTS
  252. select ARM_GIC
  253. select MIGHT_HAVE_PCI
  254. select PCI_DOMAINS if PCI
  255. help
  256. Support for Cavium Networks CNS3XXX platform.
  257. config ARCH_GEMINI
  258. bool "Cortina Systems Gemini"
  259. select CPU_FA526
  260. select ARCH_REQUIRE_GPIOLIB
  261. select ARCH_USES_GETTIMEOFFSET
  262. help
  263. Support for the Cortina Systems Gemini family SoCs
  264. config ARCH_EBSA110
  265. bool "EBSA-110"
  266. select CPU_SA110
  267. select ISA
  268. select NO_IOPORT
  269. select ARCH_USES_GETTIMEOFFSET
  270. help
  271. This is an evaluation board for the StrongARM processor available
  272. from Digital. It has limited hardware on-board, including an
  273. Ethernet interface, two PCMCIA sockets, two serial ports and a
  274. parallel port.
  275. config ARCH_EP93XX
  276. bool "EP93xx-based"
  277. select CPU_ARM920T
  278. select ARM_AMBA
  279. select ARM_VIC
  280. select CLKDEV_LOOKUP
  281. select ARCH_REQUIRE_GPIOLIB
  282. select ARCH_HAS_HOLES_MEMORYMODEL
  283. select ARCH_USES_GETTIMEOFFSET
  284. help
  285. This enables support for the Cirrus EP93xx series of CPUs.
  286. config ARCH_FOOTBRIDGE
  287. bool "FootBridge"
  288. select CPU_SA110
  289. select FOOTBRIDGE
  290. select ARCH_USES_GETTIMEOFFSET
  291. help
  292. Support for systems based on the DC21285 companion chip
  293. ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
  294. config ARCH_MXC
  295. bool "Freescale MXC/iMX-based"
  296. select GENERIC_CLOCKEVENTS
  297. select ARCH_REQUIRE_GPIOLIB
  298. select CLKDEV_LOOKUP
  299. help
  300. Support for Freescale MXC/iMX-based family of processors
  301. config ARCH_MXS
  302. bool "Freescale MXS-based"
  303. select GENERIC_CLOCKEVENTS
  304. select ARCH_REQUIRE_GPIOLIB
  305. select CLKDEV_LOOKUP
  306. help
  307. Support for Freescale MXS-based family of processors
  308. config ARCH_STMP3XXX
  309. bool "Freescale STMP3xxx"
  310. select CPU_ARM926T
  311. select CLKDEV_LOOKUP
  312. select ARCH_REQUIRE_GPIOLIB
  313. select GENERIC_CLOCKEVENTS
  314. select USB_ARCH_HAS_EHCI
  315. help
  316. Support for systems based on the Freescale 3xxx CPUs.
  317. config ARCH_NETX
  318. bool "Hilscher NetX based"
  319. select CPU_ARM926T
  320. select ARM_VIC
  321. select GENERIC_CLOCKEVENTS
  322. help
  323. This enables support for systems based on the Hilscher NetX Soc
  324. config ARCH_H720X
  325. bool "Hynix HMS720x-based"
  326. select CPU_ARM720T
  327. select ISA_DMA_API
  328. select ARCH_USES_GETTIMEOFFSET
  329. help
  330. This enables support for systems based on the Hynix HMS720x
  331. config ARCH_IOP13XX
  332. bool "IOP13xx-based"
  333. depends on MMU
  334. select CPU_XSC3
  335. select PLAT_IOP
  336. select PCI
  337. select ARCH_SUPPORTS_MSI
  338. select VMSPLIT_1G
  339. help
  340. Support for Intel's IOP13XX (XScale) family of processors.
  341. config ARCH_IOP32X
  342. bool "IOP32x-based"
  343. depends on MMU
  344. select CPU_XSCALE
  345. select PLAT_IOP
  346. select PCI
  347. select ARCH_REQUIRE_GPIOLIB
  348. help
  349. Support for Intel's 80219 and IOP32X (XScale) family of
  350. processors.
  351. config ARCH_IOP33X
  352. bool "IOP33x-based"
  353. depends on MMU
  354. select CPU_XSCALE
  355. select PLAT_IOP
  356. select PCI
  357. select ARCH_REQUIRE_GPIOLIB
  358. help
  359. Support for Intel's IOP33X (XScale) family of processors.
  360. config ARCH_IXP23XX
  361. bool "IXP23XX-based"
  362. depends on MMU
  363. select CPU_XSC3
  364. select PCI
  365. select ARCH_USES_GETTIMEOFFSET
  366. help
  367. Support for Intel's IXP23xx (XScale) family of processors.
  368. config ARCH_IXP2000
  369. bool "IXP2400/2800-based"
  370. depends on MMU
  371. select CPU_XSCALE
  372. select PCI
  373. select ARCH_USES_GETTIMEOFFSET
  374. help
  375. Support for Intel's IXP2400/2800 (XScale) family of processors.
  376. config ARCH_IXP4XX
  377. bool "IXP4xx-based"
  378. depends on MMU
  379. select CPU_XSCALE
  380. select GENERIC_GPIO
  381. select GENERIC_CLOCKEVENTS
  382. select HAVE_SCHED_CLOCK
  383. select MIGHT_HAVE_PCI
  384. select DMABOUNCE if PCI
  385. help
  386. Support for Intel's IXP4XX (XScale) family of processors.
  387. config ARCH_DOVE
  388. bool "Marvell Dove"
  389. select PCI
  390. select ARCH_REQUIRE_GPIOLIB
  391. select GENERIC_CLOCKEVENTS
  392. select PLAT_ORION
  393. help
  394. Support for the Marvell Dove SoC 88AP510
  395. config ARCH_KIRKWOOD
  396. bool "Marvell Kirkwood"
  397. select CPU_FEROCEON
  398. select PCI
  399. select ARCH_REQUIRE_GPIOLIB
  400. select GENERIC_CLOCKEVENTS
  401. select PLAT_ORION
  402. help
  403. Support for the following Marvell Kirkwood series SoCs:
  404. 88F6180, 88F6192 and 88F6281.
  405. config ARCH_LOKI
  406. bool "Marvell Loki (88RC8480)"
  407. select CPU_FEROCEON
  408. select GENERIC_CLOCKEVENTS
  409. select PLAT_ORION
  410. help
  411. Support for the Marvell Loki (88RC8480) SoC.
  412. config ARCH_LPC32XX
  413. bool "NXP LPC32XX"
  414. select CPU_ARM926T
  415. select ARCH_REQUIRE_GPIOLIB
  416. select HAVE_IDE
  417. select ARM_AMBA
  418. select USB_ARCH_HAS_OHCI
  419. select CLKDEV_LOOKUP
  420. select GENERIC_TIME
  421. select GENERIC_CLOCKEVENTS
  422. help
  423. Support for the NXP LPC32XX family of processors
  424. config ARCH_MV78XX0
  425. bool "Marvell MV78xx0"
  426. select CPU_FEROCEON
  427. select PCI
  428. select ARCH_REQUIRE_GPIOLIB
  429. select GENERIC_CLOCKEVENTS
  430. select PLAT_ORION
  431. help
  432. Support for the following Marvell MV78xx0 series SoCs:
  433. MV781x0, MV782x0.
  434. config ARCH_ORION5X
  435. bool "Marvell Orion"
  436. depends on MMU
  437. select CPU_FEROCEON
  438. select PCI
  439. select ARCH_REQUIRE_GPIOLIB
  440. select GENERIC_CLOCKEVENTS
  441. select PLAT_ORION
  442. help
  443. Support for the following Marvell Orion 5x series SoCs:
  444. Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
  445. Orion-2 (5281), Orion-1-90 (6183).
  446. config ARCH_MMP
  447. bool "Marvell PXA168/910/MMP2"
  448. depends on MMU
  449. select ARCH_REQUIRE_GPIOLIB
  450. select CLKDEV_LOOKUP
  451. select GENERIC_CLOCKEVENTS
  452. select HAVE_SCHED_CLOCK
  453. select TICK_ONESHOT
  454. select PLAT_PXA
  455. select SPARSE_IRQ
  456. help
  457. Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
  458. config ARCH_KS8695
  459. bool "Micrel/Kendin KS8695"
  460. select CPU_ARM922T
  461. select ARCH_REQUIRE_GPIOLIB
  462. select ARCH_USES_GETTIMEOFFSET
  463. help
  464. Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
  465. System-on-Chip devices.
  466. config ARCH_NS9XXX
  467. bool "NetSilicon NS9xxx"
  468. select CPU_ARM926T
  469. select GENERIC_GPIO
  470. select GENERIC_CLOCKEVENTS
  471. select HAVE_CLK
  472. help
  473. Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
  474. System.
  475. <http://www.digi.com/products/microprocessors/index.jsp>
  476. config ARCH_W90X900
  477. bool "Nuvoton W90X900 CPU"
  478. select CPU_ARM926T
  479. select ARCH_REQUIRE_GPIOLIB
  480. select CLKDEV_LOOKUP
  481. select GENERIC_CLOCKEVENTS
  482. help
  483. Support for Nuvoton (Winbond logic dept.) ARM9 processor,
  484. At present, the w90x900 has been renamed nuc900, regarding
  485. the ARM series product line, you can login the following
  486. link address to know more.
  487. <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
  488. ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
  489. config ARCH_NUC93X
  490. bool "Nuvoton NUC93X CPU"
  491. select CPU_ARM926T
  492. select CLKDEV_LOOKUP
  493. help
  494. Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
  495. low-power and high performance MPEG-4/JPEG multimedia controller chip.
  496. config ARCH_TEGRA
  497. bool "NVIDIA Tegra"
  498. select CLKDEV_LOOKUP
  499. select GENERIC_TIME
  500. select GENERIC_CLOCKEVENTS
  501. select GENERIC_GPIO
  502. select HAVE_CLK
  503. select HAVE_SCHED_CLOCK
  504. select ARCH_HAS_BARRIERS if CACHE_L2X0
  505. select ARCH_HAS_CPUFREQ
  506. help
  507. This enables support for NVIDIA Tegra based systems (Tegra APX,
  508. Tegra 6xx and Tegra 2 series).
  509. config ARCH_PNX4008
  510. bool "Philips Nexperia PNX4008 Mobile"
  511. select CPU_ARM926T
  512. select CLKDEV_LOOKUP
  513. select ARCH_USES_GETTIMEOFFSET
  514. help
  515. This enables support for Philips PNX4008 mobile platform.
  516. config ARCH_PXA
  517. bool "PXA2xx/PXA3xx-based"
  518. depends on MMU
  519. select ARCH_MTD_XIP
  520. select ARCH_HAS_CPUFREQ
  521. select CLKDEV_LOOKUP
  522. select ARCH_REQUIRE_GPIOLIB
  523. select GENERIC_CLOCKEVENTS
  524. select HAVE_SCHED_CLOCK
  525. select TICK_ONESHOT
  526. select PLAT_PXA
  527. select SPARSE_IRQ
  528. help
  529. Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
  530. config ARCH_MSM
  531. bool "Qualcomm MSM"
  532. select HAVE_CLK
  533. select GENERIC_CLOCKEVENTS
  534. select ARCH_REQUIRE_GPIOLIB
  535. help
  536. Support for Qualcomm MSM/QSD based systems. This runs on the
  537. apps processor of the MSM/QSD and depends on a shared memory
  538. interface to the modem processor which runs the baseband
  539. stack and controls some vital subsystems
  540. (clock and power control, etc).
  541. config ARCH_SHMOBILE
  542. bool "Renesas SH-Mobile / R-Mobile"
  543. select HAVE_CLK
  544. select CLKDEV_LOOKUP
  545. select GENERIC_CLOCKEVENTS
  546. select NO_IOPORT
  547. select SPARSE_IRQ
  548. select MULTI_IRQ_HANDLER
  549. help
  550. Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
  551. config ARCH_RPC
  552. bool "RiscPC"
  553. select ARCH_ACORN
  554. select FIQ
  555. select TIMER_ACORN
  556. select ARCH_MAY_HAVE_PC_FDC
  557. select HAVE_PATA_PLATFORM
  558. select ISA_DMA_API
  559. select NO_IOPORT
  560. select ARCH_SPARSEMEM_ENABLE
  561. select ARCH_USES_GETTIMEOFFSET
  562. help
  563. On the Acorn Risc-PC, Linux can support the internal IDE disk and
  564. CD-ROM interface, serial and parallel port, and the floppy drive.
  565. config ARCH_SA1100
  566. bool "SA1100-based"
  567. select CPU_SA1100
  568. select ISA
  569. select ARCH_SPARSEMEM_ENABLE
  570. select ARCH_MTD_XIP
  571. select ARCH_HAS_CPUFREQ
  572. select CPU_FREQ
  573. select GENERIC_CLOCKEVENTS
  574. select HAVE_CLK
  575. select HAVE_SCHED_CLOCK
  576. select TICK_ONESHOT
  577. select ARCH_REQUIRE_GPIOLIB
  578. help
  579. Support for StrongARM 11x0 based boards.
  580. config ARCH_S3C2410
  581. bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
  582. select GENERIC_GPIO
  583. select ARCH_HAS_CPUFREQ
  584. select HAVE_CLK
  585. select ARCH_USES_GETTIMEOFFSET
  586. select HAVE_S3C2410_I2C if I2C
  587. help
  588. Samsung S3C2410X CPU based systems, such as the Simtec Electronics
  589. BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
  590. the Samsung SMDK2410 development board (and derivatives).
  591. Note, the S3C2416 and the S3C2450 are so close that they even share
  592. the same SoC ID code. This means that there is no seperate machine
  593. directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
  594. config ARCH_S3C64XX
  595. bool "Samsung S3C64XX"
  596. select PLAT_SAMSUNG
  597. select CPU_V6
  598. select ARM_VIC
  599. select HAVE_CLK
  600. select NO_IOPORT
  601. select ARCH_USES_GETTIMEOFFSET
  602. select ARCH_HAS_CPUFREQ
  603. select ARCH_REQUIRE_GPIOLIB
  604. select SAMSUNG_CLKSRC
  605. select SAMSUNG_IRQ_VIC_TIMER
  606. select SAMSUNG_IRQ_UART
  607. select S3C_GPIO_TRACK
  608. select S3C_GPIO_PULL_UPDOWN
  609. select S3C_GPIO_CFG_S3C24XX
  610. select S3C_GPIO_CFG_S3C64XX
  611. select S3C_DEV_NAND
  612. select USB_ARCH_HAS_OHCI
  613. select SAMSUNG_GPIOLIB_4BIT
  614. select HAVE_S3C2410_I2C if I2C
  615. select HAVE_S3C2410_WATCHDOG if WATCHDOG
  616. help
  617. Samsung S3C64XX series based systems
  618. config ARCH_S5P64X0
  619. bool "Samsung S5P6440 S5P6450"
  620. select CPU_V6
  621. select GENERIC_GPIO
  622. select HAVE_CLK
  623. select HAVE_S3C2410_WATCHDOG if WATCHDOG
  624. select ARCH_USES_GETTIMEOFFSET
  625. select HAVE_S3C2410_I2C if I2C
  626. select HAVE_S3C_RTC if RTC_CLASS
  627. help
  628. Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
  629. SMDK6450.
  630. config ARCH_S5P6442
  631. bool "Samsung S5P6442"
  632. select CPU_V6
  633. select GENERIC_GPIO
  634. select HAVE_CLK
  635. select ARCH_USES_GETTIMEOFFSET
  636. select HAVE_S3C2410_WATCHDOG if WATCHDOG
  637. help
  638. Samsung S5P6442 CPU based systems
  639. config ARCH_S5PC100
  640. bool "Samsung S5PC100"
  641. select GENERIC_GPIO
  642. select HAVE_CLK
  643. select CPU_V7
  644. select ARM_L1_CACHE_SHIFT_6
  645. select ARCH_USES_GETTIMEOFFSET
  646. select HAVE_S3C2410_I2C if I2C
  647. select HAVE_S3C_RTC if RTC_CLASS
  648. select HAVE_S3C2410_WATCHDOG if WATCHDOG
  649. help
  650. Samsung S5PC100 series based systems
  651. config ARCH_S5PV210
  652. bool "Samsung S5PV210/S5PC110"
  653. select CPU_V7
  654. select ARCH_SPARSEMEM_ENABLE
  655. select GENERIC_GPIO
  656. select HAVE_CLK
  657. select ARM_L1_CACHE_SHIFT_6
  658. select ARCH_HAS_CPUFREQ
  659. select ARCH_USES_GETTIMEOFFSET
  660. select HAVE_S3C2410_I2C if I2C
  661. select HAVE_S3C_RTC if RTC_CLASS
  662. select HAVE_S3C2410_WATCHDOG if WATCHDOG
  663. help
  664. Samsung S5PV210/S5PC110 series based systems
  665. config ARCH_S5PV310
  666. bool "Samsung S5PV310/S5PC210"
  667. select CPU_V7
  668. select ARCH_SPARSEMEM_ENABLE
  669. select GENERIC_GPIO
  670. select HAVE_CLK
  671. select ARCH_HAS_CPUFREQ
  672. select GENERIC_CLOCKEVENTS
  673. select HAVE_S3C_RTC if RTC_CLASS
  674. select HAVE_S3C2410_I2C if I2C
  675. select HAVE_S3C2410_WATCHDOG if WATCHDOG
  676. help
  677. Samsung S5PV310 series based systems
  678. config ARCH_SHARK
  679. bool "Shark"
  680. select CPU_SA110
  681. select ISA
  682. select ISA_DMA
  683. select ZONE_DMA
  684. select PCI
  685. select ARCH_USES_GETTIMEOFFSET
  686. help
  687. Support for the StrongARM based Digital DNARD machine, also known
  688. as "Shark" (<http://www.shark-linux.de/shark.html>).
  689. config ARCH_TCC_926
  690. bool "Telechips TCC ARM926-based systems"
  691. select CPU_ARM926T
  692. select HAVE_CLK
  693. select CLKDEV_LOOKUP
  694. select GENERIC_CLOCKEVENTS
  695. help
  696. Support for Telechips TCC ARM926-based systems.
  697. config ARCH_LH7A40X
  698. bool "Sharp LH7A40X"
  699. select CPU_ARM922T
  700. select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
  701. select ARCH_USES_GETTIMEOFFSET
  702. help
  703. Say Y here for systems based on one of the Sharp LH7A40X
  704. System on a Chip processors. These CPUs include an ARM922T
  705. core with a wide array of integrated devices for
  706. hand-held and low-power applications.
  707. config ARCH_U300
  708. bool "ST-Ericsson U300 Series"
  709. depends on MMU
  710. select CPU_ARM926T
  711. select HAVE_SCHED_CLOCK
  712. select HAVE_TCM
  713. select ARM_AMBA
  714. select ARM_VIC
  715. select GENERIC_CLOCKEVENTS
  716. select CLKDEV_LOOKUP
  717. select GENERIC_GPIO
  718. help
  719. Support for ST-Ericsson U300 series mobile platforms.
  720. config ARCH_U8500
  721. bool "ST-Ericsson U8500 Series"
  722. select CPU_V7
  723. select ARM_AMBA
  724. select GENERIC_CLOCKEVENTS
  725. select CLKDEV_LOOKUP
  726. select ARCH_REQUIRE_GPIOLIB
  727. select ARCH_HAS_CPUFREQ
  728. help
  729. Support for ST-Ericsson's Ux500 architecture
  730. config ARCH_NOMADIK
  731. bool "STMicroelectronics Nomadik"
  732. select ARM_AMBA
  733. select ARM_VIC
  734. select CPU_ARM926T
  735. select CLKDEV_LOOKUP
  736. select GENERIC_CLOCKEVENTS
  737. select ARCH_REQUIRE_GPIOLIB
  738. help
  739. Support for the Nomadik platform by ST-Ericsson
  740. config ARCH_DAVINCI
  741. bool "TI DaVinci"
  742. select GENERIC_CLOCKEVENTS
  743. select ARCH_REQUIRE_GPIOLIB
  744. select ZONE_DMA
  745. select HAVE_IDE
  746. select CLKDEV_LOOKUP
  747. select GENERIC_ALLOCATOR
  748. select ARCH_HAS_HOLES_MEMORYMODEL
  749. help
  750. Support for TI's DaVinci platform.
  751. config ARCH_OMAP
  752. bool "TI OMAP"
  753. select HAVE_CLK
  754. select ARCH_REQUIRE_GPIOLIB
  755. select ARCH_HAS_CPUFREQ
  756. select GENERIC_CLOCKEVENTS
  757. select HAVE_SCHED_CLOCK
  758. select ARCH_HAS_HOLES_MEMORYMODEL
  759. help
  760. Support for TI's OMAP platform (OMAP1/2/3/4).
  761. config PLAT_SPEAR
  762. bool "ST SPEAr"
  763. select ARM_AMBA
  764. select ARCH_REQUIRE_GPIOLIB
  765. select CLKDEV_LOOKUP
  766. select GENERIC_CLOCKEVENTS
  767. select HAVE_CLK
  768. help
  769. Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
  770. endchoice
  771. #
  772. # This is sorted alphabetically by mach-* pathname. However, plat-*
  773. # Kconfigs may be included either alphabetically (according to the
  774. # plat- suffix) or along side the corresponding mach-* source.
  775. #
  776. source "arch/arm/mach-aaec2000/Kconfig"
  777. source "arch/arm/mach-at91/Kconfig"
  778. source "arch/arm/mach-bcmring/Kconfig"
  779. source "arch/arm/mach-clps711x/Kconfig"
  780. source "arch/arm/mach-cns3xxx/Kconfig"
  781. source "arch/arm/mach-davinci/Kconfig"
  782. source "arch/arm/mach-dove/Kconfig"
  783. source "arch/arm/mach-ep93xx/Kconfig"
  784. source "arch/arm/mach-footbridge/Kconfig"
  785. source "arch/arm/mach-gemini/Kconfig"
  786. source "arch/arm/mach-h720x/Kconfig"
  787. source "arch/arm/mach-integrator/Kconfig"
  788. source "arch/arm/mach-iop32x/Kconfig"
  789. source "arch/arm/mach-iop33x/Kconfig"
  790. source "arch/arm/mach-iop13xx/Kconfig"
  791. source "arch/arm/mach-ixp4xx/Kconfig"
  792. source "arch/arm/mach-ixp2000/Kconfig"
  793. source "arch/arm/mach-ixp23xx/Kconfig"
  794. source "arch/arm/mach-kirkwood/Kconfig"
  795. source "arch/arm/mach-ks8695/Kconfig"
  796. source "arch/arm/mach-lh7a40x/Kconfig"
  797. source "arch/arm/mach-loki/Kconfig"
  798. source "arch/arm/mach-lpc32xx/Kconfig"
  799. source "arch/arm/mach-msm/Kconfig"
  800. source "arch/arm/mach-mv78xx0/Kconfig"
  801. source "arch/arm/plat-mxc/Kconfig"
  802. source "arch/arm/mach-mxs/Kconfig"
  803. source "arch/arm/mach-netx/Kconfig"
  804. source "arch/arm/mach-nomadik/Kconfig"
  805. source "arch/arm/plat-nomadik/Kconfig"
  806. source "arch/arm/mach-ns9xxx/Kconfig"
  807. source "arch/arm/mach-nuc93x/Kconfig"
  808. source "arch/arm/plat-omap/Kconfig"
  809. source "arch/arm/mach-omap1/Kconfig"
  810. source "arch/arm/mach-omap2/Kconfig"
  811. source "arch/arm/mach-orion5x/Kconfig"
  812. source "arch/arm/mach-pxa/Kconfig"
  813. source "arch/arm/plat-pxa/Kconfig"
  814. source "arch/arm/mach-mmp/Kconfig"
  815. source "arch/arm/mach-realview/Kconfig"
  816. source "arch/arm/mach-sa1100/Kconfig"
  817. source "arch/arm/plat-samsung/Kconfig"
  818. source "arch/arm/plat-s3c24xx/Kconfig"
  819. source "arch/arm/plat-s5p/Kconfig"
  820. source "arch/arm/plat-spear/Kconfig"
  821. source "arch/arm/plat-tcc/Kconfig"
  822. if ARCH_S3C2410
  823. source "arch/arm/mach-s3c2400/Kconfig"
  824. source "arch/arm/mach-s3c2410/Kconfig"
  825. source "arch/arm/mach-s3c2412/Kconfig"
  826. source "arch/arm/mach-s3c2416/Kconfig"
  827. source "arch/arm/mach-s3c2440/Kconfig"
  828. source "arch/arm/mach-s3c2443/Kconfig"
  829. endif
  830. if ARCH_S3C64XX
  831. source "arch/arm/mach-s3c64xx/Kconfig"
  832. endif
  833. source "arch/arm/mach-s5p64x0/Kconfig"
  834. source "arch/arm/mach-s5p6442/Kconfig"
  835. source "arch/arm/mach-s5pc100/Kconfig"
  836. source "arch/arm/mach-s5pv210/Kconfig"
  837. source "arch/arm/mach-s5pv310/Kconfig"
  838. source "arch/arm/mach-shmobile/Kconfig"
  839. source "arch/arm/plat-stmp3xxx/Kconfig"
  840. source "arch/arm/mach-tegra/Kconfig"
  841. source "arch/arm/mach-u300/Kconfig"
  842. source "arch/arm/mach-ux500/Kconfig"
  843. source "arch/arm/mach-versatile/Kconfig"
  844. source "arch/arm/mach-vexpress/Kconfig"
  845. source "arch/arm/mach-w90x900/Kconfig"
  846. # Definitions to make life easier
  847. config ARCH_ACORN
  848. bool
  849. config PLAT_IOP
  850. bool
  851. select GENERIC_CLOCKEVENTS
  852. select HAVE_SCHED_CLOCK
  853. config PLAT_ORION
  854. bool
  855. select HAVE_SCHED_CLOCK
  856. config PLAT_PXA
  857. bool
  858. config PLAT_VERSATILE
  859. bool
  860. config ARM_TIMER_SP804
  861. bool
  862. source arch/arm/mm/Kconfig
  863. config IWMMXT
  864. bool "Enable iWMMXt support"
  865. depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
  866. default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
  867. help
  868. Enable support for iWMMXt context switching at run time if
  869. running on a CPU that supports it.
  870. # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
  871. config XSCALE_PMU
  872. bool
  873. depends on CPU_XSCALE && !XSCALE_PMU_TIMER
  874. default y
  875. config CPU_HAS_PMU
  876. depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
  877. (!ARCH_OMAP3 || OMAP3_EMU)
  878. default y
  879. bool
  880. config MULTI_IRQ_HANDLER
  881. bool
  882. help
  883. Allow each machine to specify it's own IRQ handler at run time.
  884. if !MMU
  885. source "arch/arm/Kconfig-nommu"
  886. endif
  887. config ARM_ERRATA_411920
  888. bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
  889. depends on CPU_V6
  890. help
  891. Invalidation of the Instruction Cache operation can
  892. fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
  893. It does not affect the MPCore. This option enables the ARM Ltd.
  894. recommended workaround.
  895. config ARM_ERRATA_430973
  896. bool "ARM errata: Stale prediction on replaced interworking branch"
  897. depends on CPU_V7
  898. help
  899. This option enables the workaround for the 430973 Cortex-A8
  900. (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
  901. interworking branch is replaced with another code sequence at the
  902. same virtual address, whether due to self-modifying code or virtual
  903. to physical address re-mapping, Cortex-A8 does not recover from the
  904. stale interworking branch prediction. This results in Cortex-A8
  905. executing the new code sequence in the incorrect ARM or Thumb state.
  906. The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
  907. and also flushes the branch target cache at every context switch.
  908. Note that setting specific bits in the ACTLR register may not be
  909. available in non-secure mode.
  910. config ARM_ERRATA_458693
  911. bool "ARM errata: Processor deadlock when a false hazard is created"
  912. depends on CPU_V7
  913. help
  914. This option enables the workaround for the 458693 Cortex-A8 (r2p0)
  915. erratum. For very specific sequences of memory operations, it is
  916. possible for a hazard condition intended for a cache line to instead
  917. be incorrectly associated with a different cache line. This false
  918. hazard might then cause a processor deadlock. The workaround enables
  919. the L1 caching of the NEON accesses and disables the PLD instruction
  920. in the ACTLR register. Note that setting specific bits in the ACTLR
  921. register may not be available in non-secure mode.
  922. config ARM_ERRATA_460075
  923. bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
  924. depends on CPU_V7
  925. help
  926. This option enables the workaround for the 460075 Cortex-A8 (r2p0)
  927. erratum. Any asynchronous access to the L2 cache may encounter a
  928. situation in which recent store transactions to the L2 cache are lost
  929. and overwritten with stale memory contents from external memory. The
  930. workaround disables the write-allocate mode for the L2 cache via the
  931. ACTLR register. Note that setting specific bits in the ACTLR register
  932. may not be available in non-secure mode.
  933. config ARM_ERRATA_742230
  934. bool "ARM errata: DMB operation may be faulty"
  935. depends on CPU_V7 && SMP
  936. help
  937. This option enables the workaround for the 742230 Cortex-A9
  938. (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
  939. between two write operations may not ensure the correct visibility
  940. ordering of the two writes. This workaround sets a specific bit in
  941. the diagnostic register of the Cortex-A9 which causes the DMB
  942. instruction to behave as a DSB, ensuring the correct behaviour of
  943. the two writes.
  944. config ARM_ERRATA_742231
  945. bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
  946. depends on CPU_V7 && SMP
  947. help
  948. This option enables the workaround for the 742231 Cortex-A9
  949. (r2p0..r2p2) erratum. Under certain conditions, specific to the
  950. Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
  951. accessing some data located in the same cache line, may get corrupted
  952. data due to bad handling of the address hazard when the line gets
  953. replaced from one of the CPUs at the same time as another CPU is
  954. accessing it. This workaround sets specific bits in the diagnostic
  955. register of the Cortex-A9 which reduces the linefill issuing
  956. capabilities of the processor.
  957. config PL310_ERRATA_588369
  958. bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
  959. depends on CACHE_L2X0
  960. help
  961. The PL310 L2 cache controller implements three types of Clean &
  962. Invalidate maintenance operations: by Physical Address
  963. (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
  964. They are architecturally defined to behave as the execution of a
  965. clean operation followed immediately by an invalidate operation,
  966. both performing to the same memory location. This functionality
  967. is not correctly implemented in PL310 as clean lines are not
  968. invalidated as a result of these operations.
  969. config ARM_ERRATA_720789
  970. bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
  971. depends on CPU_V7 && SMP
  972. help
  973. This option enables the workaround for the 720789 Cortex-A9 (prior to
  974. r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
  975. broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
  976. As a consequence of this erratum, some TLB entries which should be
  977. invalidated are not, resulting in an incoherency in the system page
  978. tables. The workaround changes the TLB flushing routines to invalidate
  979. entries regardless of the ASID.
  980. config ARM_ERRATA_743622
  981. bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
  982. depends on CPU_V7
  983. help
  984. This option enables the workaround for the 743622 Cortex-A9
  985. (r2p0..r2p2) erratum. Under very rare conditions, a faulty
  986. optimisation in the Cortex-A9 Store Buffer may lead to data
  987. corruption. This workaround sets a specific bit in the diagnostic
  988. register of the Cortex-A9 which disables the Store Buffer
  989. optimisation, preventing the defect from occurring. This has no
  990. visible impact on the overall performance or power consumption of the
  991. processor.
  992. config PL310_ERRATA_727915
  993. bool "Background Clean & Invalidate by Way operation can cause data corruption"
  994. depends on CACHE_L2X0
  995. help
  996. PL310 implements the Clean & Invalidate by Way L2 cache maintenance
  997. operation (offset 0x7FC). This operation runs in background so that
  998. PL310 can handle normal accesses while it is in progress. Under very
  999. rare circumstances, due to this erratum, write data can be lost when
  1000. PL310 treats a cacheable write transaction during a Clean &
  1001. Invalidate by Way operation.
  1002. endmenu
  1003. source "arch/arm/common/Kconfig"
  1004. menu "Bus support"
  1005. config ARM_AMBA
  1006. bool
  1007. config ISA
  1008. bool
  1009. help
  1010. Find out whether you have ISA slots on your motherboard. ISA is the
  1011. name of a bus system, i.e. the way the CPU talks to the other stuff
  1012. inside your box. Other bus systems are PCI, EISA, MicroChannel
  1013. (MCA) or VESA. ISA is an older system, now being displaced by PCI;
  1014. newer boards don't support it. If you have ISA, say Y, otherwise N.
  1015. # Select ISA DMA controller support
  1016. config ISA_DMA
  1017. bool
  1018. select ISA_DMA_API
  1019. # Select ISA DMA interface
  1020. config ISA_DMA_API
  1021. bool
  1022. config PCI
  1023. bool "PCI support" if MIGHT_HAVE_PCI
  1024. help
  1025. Find out whether you have a PCI motherboard. PCI is the name of a
  1026. bus system, i.e. the way the CPU talks to the other stuff inside
  1027. your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
  1028. VESA. If you have PCI, say Y, otherwise N.
  1029. config PCI_DOMAINS
  1030. bool
  1031. depends on PCI
  1032. config PCI_NANOENGINE
  1033. bool "BSE nanoEngine PCI support"
  1034. depends on SA1100_NANOENGINE
  1035. help
  1036. Enable PCI on the BSE nanoEngine board.
  1037. config PCI_SYSCALL
  1038. def_bool PCI
  1039. # Select the host bridge type
  1040. config PCI_HOST_VIA82C505
  1041. bool
  1042. depends on PCI && ARCH_SHARK
  1043. default y
  1044. config PCI_HOST_ITE8152
  1045. bool
  1046. depends on PCI && MACH_ARMCORE
  1047. default y
  1048. select DMABOUNCE
  1049. source "drivers/pci/Kconfig"
  1050. source "drivers/pcmcia/Kconfig"
  1051. endmenu
  1052. menu "Kernel Features"
  1053. source "kernel/time/Kconfig"
  1054. config SMP
  1055. bool "Symmetric Multi-Processing (EXPERIMENTAL)"
  1056. depends on EXPERIMENTAL
  1057. depends on GENERIC_CLOCKEVENTS
  1058. depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
  1059. MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
  1060. ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
  1061. ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
  1062. select USE_GENERIC_SMP_HELPERS
  1063. select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
  1064. help
  1065. This enables support for systems with more than one CPU. If you have
  1066. a system with only one CPU, like most personal computers, say N. If
  1067. you have a system with more than one CPU, say Y.
  1068. If you say N here, the kernel will run on single and multiprocessor
  1069. machines, but will use only one CPU of a multiprocessor machine. If
  1070. you say Y here, the kernel will run on many, but not all, single
  1071. processor machines. On a single processor machine, the kernel will
  1072. run faster if you say N here.
  1073. See also <file:Documentation/i386/IO-APIC.txt>,
  1074. <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
  1075. <http://tldp.org/HOWTO/SMP-HOWTO.html>.
  1076. If you don't know what to do here, say N.
  1077. config SMP_ON_UP
  1078. bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
  1079. depends on EXPERIMENTAL
  1080. depends on SMP && !XIP_KERNEL
  1081. default y
  1082. help
  1083. SMP kernels contain instructions which fail on non-SMP processors.
  1084. Enabling this option allows the kernel to modify itself to make
  1085. these instructions safe. Disabling it allows about 1K of space
  1086. savings.
  1087. If you don't know what to do here, say Y.
  1088. config HAVE_ARM_SCU
  1089. bool
  1090. depends on SMP
  1091. help
  1092. This option enables support for the ARM system coherency unit
  1093. config HAVE_ARM_TWD
  1094. bool
  1095. depends on SMP
  1096. select TICK_ONESHOT
  1097. help
  1098. This options enables support for the ARM timer and watchdog unit
  1099. choice
  1100. prompt "Memory split"
  1101. default VMSPLIT_3G
  1102. help
  1103. Select the desired split between kernel and user memory.
  1104. If you are not absolutely sure what you are doing, leave this
  1105. option alone!
  1106. config VMSPLIT_3G
  1107. bool "3G/1G user/kernel split"
  1108. config VMSPLIT_2G
  1109. bool "2G/2G user/kernel split"
  1110. config VMSPLIT_1G
  1111. bool "1G/3G user/kernel split"
  1112. endchoice
  1113. config PAGE_OFFSET
  1114. hex
  1115. default 0x40000000 if VMSPLIT_1G
  1116. default 0x80000000 if VMSPLIT_2G
  1117. default 0xC0000000
  1118. config NR_CPUS
  1119. int "Maximum number of CPUs (2-32)"
  1120. range 2 32
  1121. depends on SMP
  1122. default "4"
  1123. config HOTPLUG_CPU
  1124. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  1125. depends on SMP && HOTPLUG && EXPERIMENTAL
  1126. depends on !ARCH_MSM
  1127. help
  1128. Say Y here to experiment with turning CPUs off and on. CPUs
  1129. can be controlled through /sys/devices/system/cpu.
  1130. config LOCAL_TIMERS
  1131. bool "Use local timer interrupts"
  1132. depends on SMP
  1133. default y
  1134. select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
  1135. help
  1136. Enable support for local timers on SMP platforms, rather then the
  1137. legacy IPI broadcast method. Local timers allows the system
  1138. accounting to be spread across the timer interval, preventing a
  1139. "thundering herd" at every timer tick.
  1140. source kernel/Kconfig.preempt
  1141. config HZ
  1142. int
  1143. default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
  1144. ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
  1145. default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
  1146. default AT91_TIMER_HZ if ARCH_AT91
  1147. default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
  1148. default 100
  1149. config THUMB2_KERNEL
  1150. bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
  1151. depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
  1152. select AEABI
  1153. select ARM_ASM_UNIFIED
  1154. help
  1155. By enabling this option, the kernel will be compiled in
  1156. Thumb-2 mode. A compiler/assembler that understand the unified
  1157. ARM-Thumb syntax is needed.
  1158. If unsure, say N.
  1159. config THUMB2_AVOID_R_ARM_THM_JUMP11
  1160. bool "Work around buggy Thumb-2 short branch relocations in gas"
  1161. depends on THUMB2_KERNEL && MODULES
  1162. default y
  1163. help
  1164. Various binutils versions can resolve Thumb-2 branches to
  1165. locally-defined, preemptible global symbols as short-range "b.n"
  1166. branch instructions.
  1167. This is a problem, because there's no guarantee the final
  1168. destination of the symbol, or any candidate locations for a
  1169. trampoline, are within range of the branch. For this reason, the
  1170. kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
  1171. relocation in modules at all, and it makes little sense to add
  1172. support.
  1173. The symptom is that the kernel fails with an "unsupported
  1174. relocation" error when loading some modules.
  1175. Until fixed tools are available, passing
  1176. -fno-optimize-sibling-calls to gcc should prevent gcc generating
  1177. code which hits this problem, at the cost of a bit of extra runtime
  1178. stack usage in some cases.
  1179. The problem is described in more detail at:
  1180. https://bugs.launchpad.net/binutils-linaro/+bug/725126
  1181. Only Thumb-2 kernels are affected.
  1182. Unless you are sure your tools don't have this problem, say Y.
  1183. config ARM_ASM_UNIFIED
  1184. bool
  1185. config AEABI
  1186. bool "Use the ARM EABI to compile the kernel"
  1187. help
  1188. This option allows for the kernel to be compiled using the latest
  1189. ARM ABI (aka EABI). This is only useful if you are using a user
  1190. space environment that is also compiled with EABI.
  1191. Since there are major incompatibilities between the legacy ABI and
  1192. EABI, especially with regard to structure member alignment, this
  1193. option also changes the kernel syscall calling convention to
  1194. disambiguate both ABIs and allow for backward compatibility support
  1195. (selected with CONFIG_OABI_COMPAT).
  1196. To use this you need GCC version 4.0.0 or later.
  1197. config OABI_COMPAT
  1198. bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
  1199. depends on AEABI && EXPERIMENTAL
  1200. default y
  1201. help
  1202. This option preserves the old syscall interface along with the
  1203. new (ARM EABI) one. It also provides a compatibility layer to
  1204. intercept syscalls that have structure arguments which layout
  1205. in memory differs between the legacy ABI and the new ARM EABI
  1206. (only for non "thumb" binaries). This option adds a tiny
  1207. overhead to all syscalls and produces a slightly larger kernel.
  1208. If you know you'll be using only pure EABI user space then you
  1209. can say N here. If this option is not selected and you attempt
  1210. to execute a legacy ABI binary then the result will be
  1211. UNPREDICTABLE (in fact it can be predicted that it won't work
  1212. at all). If in doubt say Y.
  1213. config ARCH_HAS_HOLES_MEMORYMODEL
  1214. bool
  1215. config ARCH_SPARSEMEM_ENABLE
  1216. bool
  1217. config ARCH_SPARSEMEM_DEFAULT
  1218. def_bool ARCH_SPARSEMEM_ENABLE
  1219. config ARCH_SELECT_MEMORY_MODEL
  1220. def_bool ARCH_SPARSEMEM_ENABLE
  1221. config HIGHMEM
  1222. bool "High Memory Support (EXPERIMENTAL)"
  1223. depends on MMU && EXPERIMENTAL
  1224. help
  1225. The address space of ARM processors is only 4 Gigabytes large
  1226. and it has to accommodate user address space, kernel address
  1227. space as well as some memory mapped IO. That means that, if you
  1228. have a large amount of physical memory and/or IO, not all of the
  1229. memory can be "permanently mapped" by the kernel. The physical
  1230. memory that is not permanently mapped is called "high memory".
  1231. Depending on the selected kernel/user memory split, minimum
  1232. vmalloc space and actual amount of RAM, you may not need this
  1233. option which should result in a slightly faster kernel.
  1234. If unsure, say n.
  1235. config HIGHPTE
  1236. bool "Allocate 2nd-level pagetables from highmem"
  1237. depends on HIGHMEM
  1238. depends on !OUTER_CACHE
  1239. config HW_PERF_EVENTS
  1240. bool "Enable hardware performance counter support for perf events"
  1241. depends on PERF_EVENTS && CPU_HAS_PMU
  1242. default y
  1243. help
  1244. Enable hardware performance counter support for perf events. If
  1245. disabled, perf events will use software events only.
  1246. source "mm/Kconfig"
  1247. config FORCE_MAX_ZONEORDER
  1248. int "Maximum zone order" if ARCH_SHMOBILE
  1249. range 11 64 if ARCH_SHMOBILE
  1250. default "9" if SA1111
  1251. default "11"
  1252. help
  1253. The kernel memory allocator divides physically contiguous memory
  1254. blocks into "zones", where each zone is a power of two number of
  1255. pages. This option selects the largest power of two that the kernel
  1256. keeps in the memory allocator. If you need to allocate very large
  1257. blocks of physically contiguous memory, then you may need to
  1258. increase this value.
  1259. This config option is actually maximum order plus one. For example,
  1260. a value of 11 means that the largest free memory block is 2^10 pages.
  1261. config LEDS
  1262. bool "Timer and CPU usage LEDs"
  1263. depends on ARCH_CDB89712 || ARCH_EBSA110 || \
  1264. ARCH_EBSA285 || ARCH_INTEGRATOR || \
  1265. ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
  1266. ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
  1267. ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
  1268. ARCH_AT91 || ARCH_DAVINCI || \
  1269. ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
  1270. help
  1271. If you say Y here, the LEDs on your machine will be used
  1272. to provide useful information about your current system status.
  1273. If you are compiling a kernel for a NetWinder or EBSA-285, you will
  1274. be able to select which LEDs are active using the options below. If
  1275. you are compiling a kernel for the EBSA-110 or the LART however, the
  1276. red LED will simply flash regularly to indicate that the system is
  1277. still functional. It is safe to say Y here if you have a CATS
  1278. system, but the driver will do nothing.
  1279. config LEDS_TIMER
  1280. bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
  1281. OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  1282. || MACH_OMAP_PERSEUS2
  1283. depends on LEDS
  1284. depends on !GENERIC_CLOCKEVENTS
  1285. default y if ARCH_EBSA110
  1286. help
  1287. If you say Y here, one of the system LEDs (the green one on the
  1288. NetWinder, the amber one on the EBSA285, or the red one on the LART)
  1289. will flash regularly to indicate that the system is still
  1290. operational. This is mainly useful to kernel hackers who are
  1291. debugging unstable kernels.
  1292. The LART uses the same LED for both Timer LED and CPU usage LED
  1293. functions. You may choose to use both, but the Timer LED function
  1294. will overrule the CPU usage LED.
  1295. config LEDS_CPU
  1296. bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
  1297. !ARCH_OMAP) \
  1298. || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
  1299. || MACH_OMAP_PERSEUS2
  1300. depends on LEDS
  1301. help
  1302. If you say Y here, the red LED will be used to give a good real
  1303. time indication of CPU usage, by lighting whenever the idle task
  1304. is not currently executing.
  1305. The LART uses the same LED for both Timer LED and CPU usage LED
  1306. functions. You may choose to use both, but the Timer LED function
  1307. will overrule the CPU usage LED.
  1308. config ALIGNMENT_TRAP
  1309. bool
  1310. depends on CPU_CP15_MMU
  1311. default y if !ARCH_EBSA110
  1312. select HAVE_PROC_CPU if PROC_FS
  1313. help
  1314. ARM processors cannot fetch/store information which is not
  1315. naturally aligned on the bus, i.e., a 4 byte fetch must start at an
  1316. address divisible by 4. On 32-bit ARM processors, these non-aligned
  1317. fetch/store instructions will be emulated in software if you say
  1318. here, which has a severe performance impact. This is necessary for
  1319. correct operation of some network protocols. With an IP-only
  1320. configuration it is safe to say N, otherwise say Y.
  1321. config UACCESS_WITH_MEMCPY
  1322. bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
  1323. depends on MMU && EXPERIMENTAL
  1324. default y if CPU_FEROCEON
  1325. help
  1326. Implement faster copy_to_user and clear_user methods for CPU
  1327. cores where a 8-word STM instruction give significantly higher
  1328. memory write throughput than a sequence of individual 32bit stores.
  1329. A possible side effect is a slight increase in scheduling latency
  1330. between threads sharing the same address space if they invoke
  1331. such copy operations with large buffers.
  1332. However, if the CPU data cache is using a write-allocate mode,
  1333. this option is unlikely to provide any performance gain.
  1334. config SECCOMP
  1335. bool
  1336. prompt "Enable seccomp to safely compute untrusted bytecode"
  1337. ---help---
  1338. This kernel feature is useful for number crunching applications
  1339. that may need to compute untrusted bytecode during their
  1340. execution. By using pipes or other transports made available to
  1341. the process as file descriptors supporting the read/write
  1342. syscalls, it's possible to isolate those applications in
  1343. their own address space using seccomp. Once seccomp is
  1344. enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
  1345. and the task is only allowed to execute a few safe syscalls
  1346. defined by each seccomp mode.
  1347. config CC_STACKPROTECTOR
  1348. bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
  1349. depends on EXPERIMENTAL
  1350. help
  1351. This option turns on the -fstack-protector GCC feature. This
  1352. feature puts, at the beginning of functions, a canary value on
  1353. the stack just before the return address, and validates
  1354. the value just before actually returning. Stack based buffer
  1355. overflows (that need to overwrite this return address) now also
  1356. overwrite the canary, which gets detected and the attack is then
  1357. neutralized via a kernel panic.
  1358. This feature requires gcc version 4.2 or above.
  1359. config DEPRECATED_PARAM_STRUCT
  1360. bool "Provide old way to pass kernel parameters"
  1361. help
  1362. This was deprecated in 2001 and announced to live on for 5 years.
  1363. Some old boot loaders still use this way.
  1364. endmenu
  1365. menu "Boot options"
  1366. # Compressed boot loader in ROM. Yes, we really want to ask about
  1367. # TEXT and BSS so we preserve their values in the config files.
  1368. config ZBOOT_ROM_TEXT
  1369. hex "Compressed ROM boot loader base address"
  1370. default "0"
  1371. help
  1372. The physical address at which the ROM-able zImage is to be
  1373. placed in the target. Platforms which normally make use of
  1374. ROM-able zImage formats normally set this to a suitable
  1375. value in their defconfig file.
  1376. If ZBOOT_ROM is not enabled, this has no effect.
  1377. config ZBOOT_ROM_BSS
  1378. hex "Compressed ROM boot loader BSS address"
  1379. default "0"
  1380. help
  1381. The base address of an area of read/write memory in the target
  1382. for the ROM-able zImage which must be available while the
  1383. decompressor is running. It must be large enough to hold the
  1384. entire decompressed kernel plus an additional 128 KiB.
  1385. Platforms which normally make use of ROM-able zImage formats
  1386. normally set this to a suitable value in their defconfig file.
  1387. If ZBOOT_ROM is not enabled, this has no effect.
  1388. config ZBOOT_ROM
  1389. bool "Compressed boot loader in ROM/flash"
  1390. depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
  1391. help
  1392. Say Y here if you intend to execute your compressed kernel image
  1393. (zImage) directly from ROM or flash. If unsure, say N.
  1394. config CMDLINE
  1395. string "Default kernel command string"
  1396. default ""
  1397. help
  1398. On some architectures (EBSA110 and CATS), there is currently no way
  1399. for the boot loader to pass arguments to the kernel. For these
  1400. architectures, you should supply some command-line options at build
  1401. time by entering them here. As a minimum, you should specify the
  1402. memory size and the root device (e.g., mem=64M root=/dev/nfs).
  1403. config CMDLINE_FORCE
  1404. bool "Always use the default kernel command string"
  1405. depends on CMDLINE != ""
  1406. help
  1407. Always use the default kernel command string, even if the boot
  1408. loader passes other arguments to the kernel.
  1409. This is useful if you cannot or don't want to change the
  1410. command-line options your boot loader passes to the kernel.
  1411. If unsure, say N.
  1412. config XIP_KERNEL
  1413. bool "Kernel Execute-In-Place from ROM"
  1414. depends on !ZBOOT_ROM
  1415. help
  1416. Execute-In-Place allows the kernel to run from non-volatile storage
  1417. directly addressable by the CPU, such as NOR flash. This saves RAM
  1418. space since the text section of the kernel is not loaded from flash
  1419. to RAM. Read-write sections, such as the data section and stack,
  1420. are still copied to RAM. The XIP kernel is not compressed since
  1421. it has to run directly from flash, so it will take more space to
  1422. store it. The flash address used to link the kernel object files,
  1423. and for storing it, is configuration dependent. Therefore, if you
  1424. say Y here, you must know the proper physical address where to
  1425. store the kernel image depending on your own flash memory usage.
  1426. Also note that the make target becomes "make xipImage" rather than
  1427. "make zImage" or "make Image". The final kernel binary to put in
  1428. ROM memory will be arch/arm/boot/xipImage.
  1429. If unsure, say N.
  1430. config XIP_PHYS_ADDR
  1431. hex "XIP Kernel Physical Location"
  1432. depends on XIP_KERNEL
  1433. default "0x00080000"
  1434. help
  1435. This is the physical address in your flash memory the kernel will
  1436. be linked for and stored to. This address is dependent on your
  1437. own flash usage.
  1438. config KEXEC
  1439. bool "Kexec system call (EXPERIMENTAL)"
  1440. depends on EXPERIMENTAL
  1441. help
  1442. kexec is a system call that implements the ability to shutdown your
  1443. current kernel, and to start another kernel. It is like a reboot
  1444. but it is independent of the system firmware. And like a reboot
  1445. you can start any kernel with it, not just Linux.
  1446. It is an ongoing process to be certain the hardware in a machine
  1447. is properly shutdown, so do not be surprised if this code does not
  1448. initially work for you. It may help to enable device hotplugging
  1449. support.
  1450. config ATAGS_PROC
  1451. bool "Export atags in procfs"
  1452. depends on KEXEC
  1453. default y
  1454. help
  1455. Should the atags used to boot the kernel be exported in an "atags"
  1456. file in procfs. Useful with kexec.
  1457. config CRASH_DUMP
  1458. bool "Build kdump crash kernel (EXPERIMENTAL)"
  1459. depends on EXPERIMENTAL
  1460. help
  1461. Generate crash dump after being started by kexec. This should
  1462. be normally only set in special crash dump kernels which are
  1463. loaded in the main kernel with kexec-tools into a specially
  1464. reserved region and then later executed after a crash by
  1465. kdump/kexec. The crash dump kernel must be compiled to a
  1466. memory address not used by the main kernel
  1467. For more details see Documentation/kdump/kdump.txt
  1468. config AUTO_ZRELADDR
  1469. bool "Auto calculation of the decompressed kernel image address"
  1470. depends on !ZBOOT_ROM && !ARCH_U300
  1471. help
  1472. ZRELADDR is the physical address where the decompressed kernel
  1473. image will be placed. If AUTO_ZRELADDR is selected, the address
  1474. will be determined at run-time by masking the current IP with
  1475. 0xf8000000. This assumes the zImage being placed in the first 128MB
  1476. from start of memory.
  1477. endmenu
  1478. menu "CPU Power Management"
  1479. if ARCH_HAS_CPUFREQ
  1480. source "drivers/cpufreq/Kconfig"
  1481. config CPU_FREQ_IMX
  1482. tristate "CPUfreq driver for i.MX CPUs"
  1483. depends on ARCH_MXC && CPU_FREQ
  1484. help
  1485. This enables the CPUfreq driver for i.MX CPUs.
  1486. config CPU_FREQ_SA1100
  1487. bool
  1488. config CPU_FREQ_SA1110
  1489. bool
  1490. config CPU_FREQ_INTEGRATOR
  1491. tristate "CPUfreq driver for ARM Integrator CPUs"
  1492. depends on ARCH_INTEGRATOR && CPU_FREQ
  1493. default y
  1494. help
  1495. This enables the CPUfreq driver for ARM Integrator CPUs.
  1496. For details, take a look at <file:Documentation/cpu-freq>.
  1497. If in doubt, say Y.
  1498. config CPU_FREQ_PXA
  1499. bool
  1500. depends on CPU_FREQ && ARCH_PXA && PXA25x
  1501. default y
  1502. select CPU_FREQ_DEFAULT_GOV_USERSPACE
  1503. config CPU_FREQ_S3C64XX
  1504. bool "CPUfreq support for Samsung S3C64XX CPUs"
  1505. depends on CPU_FREQ && CPU_S3C6410
  1506. config CPU_FREQ_S3C
  1507. bool
  1508. help
  1509. Internal configuration node for common cpufreq on Samsung SoC
  1510. config CPU_FREQ_S3C24XX
  1511. bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
  1512. depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
  1513. select CPU_FREQ_S3C
  1514. help
  1515. This enables the CPUfreq driver for the Samsung S3C24XX family
  1516. of CPUs.
  1517. For details, take a look at <file:Documentation/cpu-freq>.
  1518. If in doubt, say N.
  1519. config CPU_FREQ_S3C24XX_PLL
  1520. bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
  1521. depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
  1522. help
  1523. Compile in support for changing the PLL frequency from the
  1524. S3C24XX series CPUfreq driver. The PLL takes time to settle
  1525. after a frequency change, so by default it is not enabled.
  1526. This also means that the PLL tables for the selected CPU(s) will
  1527. be built which may increase the size of the kernel image.
  1528. config CPU_FREQ_S3C24XX_DEBUG
  1529. bool "Debug CPUfreq Samsung driver core"
  1530. depends on CPU_FREQ_S3C24XX
  1531. help
  1532. Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
  1533. config CPU_FREQ_S3C24XX_IODEBUG
  1534. bool "Debug CPUfreq Samsung driver IO timing"
  1535. depends on CPU_FREQ_S3C24XX
  1536. help
  1537. Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
  1538. config CPU_FREQ_S3C24XX_DEBUGFS
  1539. bool "Export debugfs for CPUFreq"
  1540. depends on CPU_FREQ_S3C24XX && DEBUG_FS
  1541. help
  1542. Export status information via debugfs.
  1543. endif
  1544. source "drivers/cpuidle/Kconfig"
  1545. endmenu
  1546. menu "Floating point emulation"
  1547. comment "At least one emulation must be selected"
  1548. config FPE_NWFPE
  1549. bool "NWFPE math emulation"
  1550. depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
  1551. ---help---
  1552. Say Y to include the NWFPE floating point emulator in the kernel.
  1553. This is necessary to run most binaries. Linux does not currently
  1554. support floating point hardware so you need to say Y here even if
  1555. your machine has an FPA or floating point co-processor podule.
  1556. You may say N here if you are going to load the Acorn FPEmulator
  1557. early in the bootup.
  1558. config FPE_NWFPE_XP
  1559. bool "Support extended precision"
  1560. depends on FPE_NWFPE
  1561. help
  1562. Say Y to include 80-bit support in the kernel floating-point
  1563. emulator. Otherwise, only 32 and 64-bit support is compiled in.
  1564. Note that gcc does not generate 80-bit operations by default,
  1565. so in most cases this option only enlarges the size of the
  1566. floating point emulator without any good reason.
  1567. You almost surely want to say N here.
  1568. config FPE_FASTFPE
  1569. bool "FastFPE math emulation (EXPERIMENTAL)"
  1570. depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
  1571. ---help---
  1572. Say Y here to include the FAST floating point emulator in the kernel.
  1573. This is an experimental much faster emulator which now also has full
  1574. precision for the mantissa. It does not support any exceptions.
  1575. It is very simple, and approximately 3-6 times faster than NWFPE.
  1576. It should be sufficient for most programs. It may be not suitable
  1577. for scientific calculations, but you have to check this for yourself.
  1578. If you do not feel you need a faster FP emulation you should better
  1579. choose NWFPE.
  1580. config VFP
  1581. bool "VFP-format floating point maths"
  1582. depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
  1583. help
  1584. Say Y to include VFP support code in the kernel. This is needed
  1585. if your hardware includes a VFP unit.
  1586. Please see <file:Documentation/arm/VFP/release-notes.txt> for
  1587. release notes and additional status information.
  1588. Say N if your target does not have VFP hardware.
  1589. config VFPv3
  1590. bool
  1591. depends on VFP
  1592. default y if CPU_V7
  1593. config NEON
  1594. bool "Advanced SIMD (NEON) Extension support"
  1595. depends on VFPv3 && CPU_V7
  1596. help
  1597. Say Y to include support code for NEON, the ARMv7 Advanced SIMD
  1598. Extension.
  1599. endmenu
  1600. menu "Userspace binary formats"
  1601. source "fs/Kconfig.binfmt"
  1602. config ARTHUR
  1603. tristate "RISC OS personality"
  1604. depends on !AEABI
  1605. help
  1606. Say Y here to include the kernel code necessary if you want to run
  1607. Acorn RISC OS/Arthur binaries under Linux. This code is still very
  1608. experimental; if this sounds frightening, say N and sleep in peace.
  1609. You can also say M here to compile this support as a module (which
  1610. will be called arthur).
  1611. endmenu
  1612. menu "Power management options"
  1613. source "kernel/power/Kconfig"
  1614. config ARCH_SUSPEND_POSSIBLE
  1615. def_bool y
  1616. endmenu
  1617. source "net/Kconfig"
  1618. source "drivers/Kconfig"
  1619. source "fs/Kconfig"
  1620. source "arch/arm/Kconfig.debug"
  1621. source "security/Kconfig"
  1622. source "crypto/Kconfig"
  1623. source "lib/Kconfig"